downcounter
A downcounter is a counter that decreases its count value on each trigger, typically a clock edge or a software instruction, and advances toward zero. When the count reaches zero, an internal flag or output may indicate the terminal condition, and the counter may reload from a preset value, stop, or wrap around to a maximum value depending on the design.
In digital electronics, down counters are implemented with flip-flops. They can be asynchronous (ripple) counters, where
Common applications include countdown timers in clocks and digital systems, programmable delays, interval timers, and timeouts
Variations exist with different control modes, such as asynchronous or synchronous clear, preset options, and different